Molding device with fluid circuit(s)

Abstract

A molding device having two half-mods that have at least one inner circuit for the circulation of a suitable fluid, such as a coolant or otherwise. The half-molds are hinged on a same shaft by the bearings thereof and the shaft, which is fixed, is provided with bores provided for receiving and returning a fluid and for interacting with rotary fluid seals connected to the half-mold to which the bores are associated. The rotary fluid seals are formed directly at the bearings of the half-mold(s).

1 - 3 . (canceled) 
     
     
         4 . A molding device of the type installed on a frame of a mold carrier unit, which mold carrier unit is positioned on a carousel of a blow-molding or stretch blow-molding machine, which molding device comprises a mold carried by said frame, and including two half-molds joined together by a single shaft on which said half-molds are hinged by means of bearings capable of allowing said half-molds to rotate between a closed position and an open position, and at least one of said half-molds comprises channels that form an inner circuit for the circulation of a fluid, wherein said hinge shaft is mounted fixed relative to said frame of said mold carrier unit and comprises bores provided for receiving and returning said fluid and in that rotary fluid seals that are connected to one of said half-molds with which said rotary fluid seals are associated are mounted on said hinge shaft and interact with said bores to supply said inner circuit. 
     
     
         5 . The molding device according to  claim 4 , wherein said rotary fluid seals are provided directly on said bearings of said half-mold or half-molds. 
     
     
         6 . The molding device according to  claim 4 , wherein said rotary fluid seals are assembled on at least one of said half-molds, which rotary seals are constituted by a ring that is associated by an arm with said at least one half-mold, which ring interacts with an extension of said hinge shaft that extends beyond the footprint of said mold, and said ring with said arm are equipped with channels that respectively connect said bores of said hinge shaft to an inlet and to an outlet of said inner circuit of said half-mold.